My 74 Argosy 20' motorhome has 4 holes in the rear bumper right above the hitch. At first I thought some PO must have had something mounted there. But the more 74 & 75 Argosy motorhomes that I look at I've noticed a lot of them have these holes.

I've seen these holes on motorhomes with generators in the rear like mine and also on motorhomes within no compartment in the rear.

The unit in the picture has the spare mounted above. I would think that is factory? If it was originally for a spare tire mount on the bumper, it would probably interfere with the hitch.

Dave

For the Argosy motorhomes Airstream did have a spare tire mounting system available as an option but after looking at tons of Argosy pictures I have yet to find any one system that seems to consistent for the first two years of production. Most Argosy motorhome pictures I've seen don't have those 4 holes. I've only seen them on two or three and they have always been on the 74-75 models.

The bottom picture is my motorhome and it came with the drawbar shown and what looks like the remains of what might have at one time been a spare tire carrier. I have no idea if it was original or not.